Whole vehicle wind tunnel wind speed calibration method and device, electronic equipment and medium

The invention discloses a whole vehicle wind tunnel wind speed calibration method and device, electronic equipment and a medium. The method comprises the following steps: under the condition that the airflow temperature and the relative humidity are determined, carrying out calibration data acquisition; performing single coefficient fitting on the calibration data to obtain a single coefficient fitting curve; determining a segmentation speed point according to the single coefficient fitting curve; performing segmentation fitting on the calibration data according to the segmentation speed points to obtain a segmentation fitting formula; and carrying out wind speed calibration according to a segmentation fitting formula. Through the piecewise linear calibration method, the wind speed control precision in the full speed domain is improved, the wind tunnel operation efficiency is improved, unnecessary workloads such as repeated calibration are effectively reduced, the wind speed control precision of the whole aut